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Effect of 2,4-Dichlorophenoxyacetic Acid on the Nucleic Acid and Protein Content of Seedling Tissue

Published online by Cambridge University Press:  12 June 2017

S. H. West ,
J. B. Hanson  and
J. L. Key
S. H. West
Affiliation:
Agricultural Research Service, U.S.D.A., Univ. of Florida, Gainesville
J. B. Hanson
Affiliation:
Agricultural Research Service, U.S.D.A., Univ. of Florida, Gainesville
J. L. Key
Affiliation:
Dept. or Agronomy, Univ. of Illinois, Urbana
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Extract

One of the most marked effects of herbicidal concentrations of 2,4-D (2,4-dichlorophenoxyacetic acid) is the swelling and proliferation of basal stem tissues. Sell et al. reported a large increase in the protein content of stems of bean plants treated with 2,4-D. Shaw, et al. observed an increase of total protein in plants treated with 2,4-D and Rebstock, et al. found the nucleic acid content to double in the stems of bean plants treated with 2,4-D. Rebstock et al. postulated that nucleic acid was involved in the unusual growth and development of the plant. Skoog has presented an attractive hypothesis linking auxin action with nucleic acid metabolism. Current biochemical investigations leave little doubt that RNA (ribonucleic acid), particularly of the microsome fraction of the cytoplasm, is involved in protein synthesis. Furthermore, RNA appears to be implicated in oxidative phosphorylation and ion absorption, two processes known to be affected by 2,4-D.

Type
Research Article
Information
Weeds , Volume 8 , Issue 3 , July 1960 , pp. 333 - 340
Copyright
Copyright © 1960 Weed Science Society of America 

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References

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